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Why can population growth increase when the death rate declines?

Answer and explanation

Correct answer: Because fewer people die and more population remains

Direct answer: Option A. Population change is calculated by considering additions and reductions. Births add people, while deaths subtract people. When the death rate declines, fewer people are removed from the population during the period. If births continue, or if births are greater than deaths, the natural increase becomes larger and population growth may rise. Option A expresses this basic idea correctly. Option B is wrong because a fall in deaths does not make births zero; births and deaths are separate demographic events. Option C is wrong because a change in death rate does not reduce the physical area of a place. Option D is wrong because migration can still occur whether the death rate is high or low. The answer says “can” increase because the exact total also depends on births and migration. Memory cue: deaths are a subtraction; reducing the subtraction can increase the result.

Related tags

Death RatePopulation GrowthNatural IncreaseDemographic ChangePopulationGeographyClass 9 Mcq

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